What is the name of the 19 line poetic form that uses only two rhymes and repeats two of the lines in a specific pattern?

The 19-line poetic form that uses only two rhymes and features a specific pattern of repeating two lines is known as a villanelle. This form is characterized by its structure, which consists of five tercets followed by a quatrain. The first and third lines of the opening tercet alternate as the final lines of the subsequent stanzas and then appear together in the final quatrain. This repetition creates a musical quality and reinforces the poem's themes. The strict rhyme scheme of ABA for the tercets and ABAA for the quatrain adds to its unique style, making it a powerful format for emotional and complex content.

In contrast, a haiku is a three-line poem with a syllabic pattern of 5-7-5 and does not involve any repeated lines. A sestina consists of six stanzas of six lines each followed by a three-line stanza, relying on a pattern of word repetition rather than rhyme. A sonnet typically has 14 lines with specific rhyme schemes and is structured either as a Petrarchan or Shakespearean sonnet, but does not employ the same repetition style as a villanelle. These differences highlight what makes the villanelle distinct and why it is the correct answer